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<?php |
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namespace HexMakina\LeMarchand; |
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use Psr\Container\{ContainerInterface, ContainerExceptionInterface, NotFoundExceptionInterface}; |
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class LeMarchand implements ContainerInterface |
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{ |
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private static $instance = null; |
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private $configurations = []; |
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public const RX_CONTROLLER_NAME = '/([a-zA-Z]+)Controller$/'; |
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public const RX_INTERFACE_NAME = '/([a-zA-Z]+)Interface$/'; |
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public const RX_SETTINGS = '/^settings\./'; |
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public const RX_MODEL_CLASS = '/([a-zA-Z]+)(Class|Model)$/'; |
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public static function box($settings=null) : ContainerInterface |
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{ |
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if(is_null(self::$instance)){ |
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if(is_array($settings)) |
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return (self::$instance = new LeMarchand($settings)); |
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throw new LamentException('MVC_TYPE ('.$mvc_type.') UNKOWN'); |
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} |
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return self::$instance; |
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} |
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private function __construct($settings) |
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{ |
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$this->configurations['settings'] = $settings; |
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} |
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public function __debugInfo(): array |
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{ |
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$dbg = get_object_vars($this); |
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if (isset($dbg['configurations']['template_engine'])) { |
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// way too long of an object |
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$dbg['configurations']['template_engine'] = get_class($dbg['configurations']['template_engine']); |
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} |
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return $dbg; |
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} |
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public function register($configuration, $instance) |
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{ |
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$this->configurations[$configuration] = $instance; |
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} |
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public function has($configuration) |
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{ |
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try{ |
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$this->get($configuration); |
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return true; |
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} |
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catch(NotFoundExceptionInterface $e){ |
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return false; |
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} |
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catch(ContainerExceptionInterface $e){ |
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return false; |
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} |
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} |
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public function get($configuration) |
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{ |
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if (!is_string($configuration)) { |
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throw new LamentException($configuration); |
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} |
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// 1. is it a first level key ? |
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if (isset($this->configurations[$configuration])) { |
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return $this->configurations[$configuration]; |
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} |
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// 2. is it configuration data ? |
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if (preg_match(self::RX_SETTINGS, $configuration, $m) === 1) { |
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return $this->getSettings($configuration); |
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} |
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// 3. is it a controller ? |
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if (preg_match(self::RX_CONTROLLER_NAME, $configuration, $m) === 1) { |
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$class_name = $this->cascadeNamespace($configuration, 'Controllers'); |
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return $this->getInstance($class_name); |
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// return $this->cascadeControllers($configuration); |
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} |
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// 4. is it a class ? |
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if (preg_match(self::RX_MODEL_CLASS, $configuration, $m) === 1) { |
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$class_name = $this->cascadeNamespace($m[1], 'Models'); |
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if($m[2] === 'Model') |
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return $this->getInstance($class_name); |
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else |
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return $class_name; |
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} |
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if (preg_match(self::RX_INTERFACE_NAME, $configuration, $m) === 1) { |
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$wire = $this->get('settings.interface_implementations'); |
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if(isset($wire[$configuration])) |
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return $this->getInstance($wire[$configuration]); |
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} |
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throw new ConfigurationException($configuration); |
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} |
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// private function cascadeControllers($controller_name) |
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// { |
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// // is the controller name already instantiable ? |
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// if (!is_null($instance = $this->getInstance($controller_name))) { |
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// return $instance; |
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// } |
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// // not fully namespaced, lets cascade |
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// foreach ($this->getSettings('settings.controller_namespaces') as $cns) { |
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// if (!is_null($instance = $this->getInstance($cns . $controller_name))) { |
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// return $instance; |
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// } |
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// } |
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// throw new ConfigurationException($controller_name); |
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// } |
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private function cascadeNamespace($class_name, $mvc_type=null) |
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{ |
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// is the controller name already instantiable ? |
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if(is_null($mvc_type) && class_exists($class_name)) |
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return $class_name; |
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if($mvc_type !== 'Models' && $mvc_type !== 'Controllers'){ |
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throw new LamentException('MVC_TYPE ('.$mvc_type.') UNKOWN'); |
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} |
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// not fully namespaced, lets cascade |
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foreach ($this->getSettings('settings.namespaces') as $ns) { |
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if(class_exists($full_name = $ns . $mvc_type . '\\' . $class_name)) |
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return $full_name; |
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} |
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throw new ConfigurationException($class_name); |
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} |
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private function getInstance($class) |
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{ |
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try { |
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$rc = new \ReflectionClass($class); |
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$instance = null; |
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$construction_args = []; |
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if (!is_null($rc->getConstructor())) { |
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foreach ($rc->getConstructor()->getParameters() as $param) { |
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$construction_args [] = $this->get($param->getType() . ''); |
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} |
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$instance = $rc->newInstanceArgs($construction_args); |
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} else { |
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$instance = $rc->newInstanceArgs(); |
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} |
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if ($rc->hasMethod('set_container')) { |
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$instance->set_container($this); |
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} |
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return $instance; |
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} catch (\ReflectionException $e) { |
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return null; |
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} |
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} |
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private function getSettings($setting) |
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{ |
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$ret = $this->configurations; |
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//dot based hierarchy, parse and climb |
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foreach (explode('.', $setting) as $k) { |
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if (!isset($ret[$k])) { |
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throw new ConfigurationException($setting); |
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} |
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$ret = $ret[$k]; |
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} |
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return $ret; |
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} |
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} |
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HexMakina /
LeMarchand
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